import {v4 as uuidv4 }from 'uuid'
// 游客身份
export const getUUID=()=>{
    let uuid_token=localStorage.getItem('UUIDTOKEN')
    if(!uuid_token){
        //没有生成
        uuid_token=uuidv4();
        localStorage.setItem('UUIDTOKEN',uuid_token)
    }
    return uuid_token
}